llvm-project

Commit Graph

Author	SHA1	Message	Date
Jay Foad	ed7458398a	[AMDGPU] Don't check for VMEM hazards on GFX10 The hazard where a VMEM reads an SGPR written by a VALU counts as a data dependency hazard, so no nops are required on GFX10. Tested with Vulkan CTS on GFX10.1 and GFX10.3. Differential Revision: https://reviews.llvm.org/D97926	2021-03-04 21:44:56 +00:00
Matt Arsenault	e1a2f4713c	AMDGPU: Match global saddr addressing mode The previous implementation was incorrect, and based off incorrect instruction definitions. Unfortunately we can't match natural addressing in a lot of cases due to the shift/scale applied in getelementptrs. This relies on reducing the 64-bit shift to 32-bits.	2020-08-17 15:28:14 -04:00
Matt Arsenault	087dcbe9bc	AMDGPU: Add baseline tests for global saddr matching	2020-08-17 15:23:13 -04:00

Author

SHA1

Message

Date

Jay Foad

ed7458398a

[AMDGPU] Don't check for VMEM hazards on GFX10

The hazard where a VMEM reads an SGPR written by a VALU counts as a data
dependency hazard, so no nops are required on GFX10. Tested with Vulkan
CTS on GFX10.1 and GFX10.3.

Differential Revision: https://reviews.llvm.org/D97926

2021-03-04 21:44:56 +00:00

Matt Arsenault

e1a2f4713c

AMDGPU: Match global saddr addressing mode

The previous implementation was incorrect, and based off incorrect
instruction definitions. Unfortunately we can't match natural
addressing in a lot of cases due to the shift/scale applied in
getelementptrs. This relies on reducing the 64-bit shift to 32-bits.

2020-08-17 15:28:14 -04:00

Matt Arsenault

087dcbe9bc

AMDGPU: Add baseline tests for global saddr matching

2020-08-17 15:23:13 -04:00

3 Commits